Invidia calls them test pipes, but they are also called catless race pipes, race pipes, or cat deletes. Call them whatever, but know this: Putting these in place of your cats means one thing...power. Invidia makes them from polished T304 stainless steel tube and welds on heavy duty flanges for perfect fitment. Test pipes are for off-road use only.
FITMENT: 03-06 350Z & 03-07 G35
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